{"product_id":"parasound-halo-jc3jr-phono-pre-amplifier-phono-stage","title":"Parasound Halo JC3JR Phono Pre-amplifier\/Phono Stage","description":"Halo JC3JR \u003cbr\u003e\u003cbr\u003e\n\nFEATURES:\u003cbr\u003e\n•Circuitry designed by legendary John Curl \u003cbr\u003e\n•Circuit board layout by Carl Thompson\u003cbr\u003e \n•Cartridge options for 47k Ω MM and MC\/MI \u003cbr\u003e\n•Variable MC impedance adjustment of 50-550 ohms \u003cbr\u003e\n•Gain select for 40 dB\/50 dB\/60 dB unbalanced (46 dB\/56 dB\/66 dB balanced) \u003cbr\u003e\n•Balanced and unbalanced outputs\u003cbr\u003e \n•Mono switch can improve sound of mono \u0026amp; older LPs\u003cbr\u003e \n•Convenient auto turn-on by 12V trigger \u003cbr\u003e\n•RIAA accurate to within 0.2 dB \u003cbr\u003e\n•Incredible S\/N up to 94 dB and THD less than 0.02% \u003cbr\u003e\n•Vishay-Dale resistors in the audio path \u003cbr\u003e\n•Aluminum shield separates power supply and audio circuits\u003cbr\u003e \n•Shielded toroid power transformer \u003cbr\u003e\n•High speed-soft recovery bridge rectifiers and common mode inductors \u003cbr\u003e\n•Vampire brand 24k gold-plated RCA jacks \u003cbr\u003e\n•Neutrik brand locking balanced XLR outputs connectors\u003cbr\u003e \n•Compact 1U chassis (2.5\" high with feet)\u003cbr\u003e \n•Available in silver or black \u003cbr\u003e\u003cbr\u003e\n\nTechnical Specifications:-\u003cbr\u003e\u003cbr\u003e\n\nFrequency Response: \n20-20Khz, +\/- 0.2dB\u003cbr\u003e\n \nTotal Harmonic Distortion:\n \u0026lt; 0.02% at 1 kHz\u003cbr\u003e\n \nSignal to Noise Ratio, 40 dB Setting: \u003cbr\u003e\n \u0026gt; 85dB, input shorted, IHF A-weighted \u003cbr\u003e\n \u0026gt; 80dB, input shorted, unweighted\u003cbr\u003e\u003cbr\u003e\n \nSignal to Noise Ratio, 50 dB Setting: \u003cbr\u003e\n \u0026gt; 89dB, input shorted, IHF A-weighted \u003cbr\u003e\n \u0026gt; 84dB, input shorted unweighted\u003cbr\u003e\u003cbr\u003e\n \nSignal to Noise Ratio, 60 dB Setting: \u003cbr\u003e\n \u0026gt; 94dB, input shorted, IHF A-weighted \u003cbr\u003e\n \u0026gt; 91dB, input shorted, unweighted\u003cbr\u003e\u003cbr\u003e\n \nInter-channel Crosstalk:\u003cbr\u003e\n \u0026gt; 80 dB at 1 kHz\u003cbr\u003e\u003cbr\u003e\n \nInput Impedance:\u003cbr\u003e\nMM or MI: 47k Ω\u003cbr\u003e \nMC Variable: 50- 550 Ω\u003cbr\u003e\u003cbr\u003e\n \nOutput Impedance: \u003cbr\u003e\nUnbalanced: \u0026lt; 100 Ω \u003cbr\u003e\nBalanced: \u0026lt; 100 Ω per leg\u003cbr\u003e\u003cbr\u003e\n \nInput Sensitivity at 1 kHz, 4mV Input: \u003cbr\u003e\n40 dB: 4 mV for 450mV output \u003cbr\u003e\n50 dB: 4 mV for 1.4 Volts output\u003cbr\u003e \n60 dB: 4 mV for 4.25 Volts output\u003cbr\u003e\u003cbr\u003e\n \nInput Sensitivity at 1 kHz, 1V Output: \u003cbr\u003e\n40 dB: 9 mV for 1.0 Volt output \u003cbr\u003e\n50 dB: 3 mV for 1.0 Volt output \u003cbr\u003e\n60 dB: 0.9 mV for 1.0 Volt output\u003cbr\u003e\u003cbr\u003e\n \nTotal Gain: \u003cbr\u003e\n40 dB \/ 50 dB \/ 60 dB (unbalanced output) \u003cbr\u003e\n46 dB \/ 56 dB \/ 66 dB (balanced output)\u003cbr\u003e\u003cbr\u003e\n \nXLR Pin Identification: \u003cbr\u003e\n1 = Ground (Shield) \u003cbr\u003e\n2 = Positive \u003cbr\u003e\n3 = Negative (Return)\u003cbr\u003e\u003cbr\u003e\n \nAC Power Requirement:\u003cbr\u003e \nStandby: \u0026lt; 1 watt \u003cbr\u003e\nPower On: 9 watts \u003cbr\u003e\n115 VAC or 230 VAC 50 - 60 Hz\u003cbr\u003e\u003cbr\u003e\n \nDimensions: \u003cbr\u003e\nWidth: 17-1\/4” (437mm) \u003cbr\u003e\nDepth: 14-3\/4” (375mm)\u003cbr\u003e\u003cbr\u003e\n \nDepth with cables: 17” (432mm): \u003cbr\u003e\nHeight: 2-1\/2” (63.5mm) \u003cbr\u003e\nHeight, without feet: 1-3\/4” (45mm)\u003cbr\u003e\u003cbr\u003e\n \nWeight:\u003cbr\u003e\nNet: 13 lbs. (5.9 Kg) \u003cbr\u003e\nShipping: 19 lbs. (8.6 kg)\n\n\n","brand":"Parasound","offers":[{"title":"Black","offer_id":57413666701644,"sku":"PARAHALOJC3JR-B","price":1666.63,"currency_code":"GBP","in_stock":true},{"title":"Silver","offer_id":57423065252172,"sku":"PARAHALOJC3JR-S","price":1666.63,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Parasound-Halo-JC3JR-Black.jpg?v=1777545530","url":"https:\/\/www.stoneaudio.co.uk\/products\/parasound-halo-jc3jr-phono-pre-amplifier-phono-stage","provider":"Stone Audio","version":"1.0","type":"link"}